检索结果-南通市图书馆

A Newly Discovered Oil-bearing Mesoproterozoic Erathem within the Niu D1 Well, liaoxi Depression, Yanliao Faulted Depression Zone, NE China

引用

Acta Geologica Sinica(English Edition) 2020年第1期94卷 202-203页

作者： SUN Qiushi GAO Xiaoyong ZONG Wenming SUN Shouliang ZHANG Tao XIAO Fei LI Yongfei SHI Lei Shenyang Center of Geological Survey China Geological Survey(CGS)/Northeast China Center for Geoscience InnovationShenyang 110034China

Objective The Yanshan Fold Belt is located within the northern margin of the North China platform and contains welldeveloped and widespread Neoproterozoic and Mesoproterozoic sedimentary units with a total thickness of up to 9000 m.Previous studies identified many oil seedlings as well as asphalt and ancient hydrocarbon reservoirs in Northern Hebei depression and western Liaoning depression.This research indicates that the Mesoproterozoic and Neoproterozoic sedimentary units are ideally suited for the formation of significant oil and gas resources.The Niu D1 well was drilled by the China Geological Survey(CGS)in the Niuyingzi area and intercepted oil immersions and oil-and gas-bearing units within a limestone reservoir in the middle Proterozoic Gaoyuzhuang Formation(Fig.1).This study presents new biomarker compound and carbon isotope data that indicate that the oil within this formation was derived from hydrocarbon source rocks of the Hongshuizhuang Formation,part of the Mesoproterozoic Jixian Series,and the reservoir type is overthrust fault fractured anticline hydrocarbon reservoir.The oil reservoir within the Gaoyuzhuang Formation limestone might represent the oldest oil reservoir discovered to date within the Yanliao faulted depression zone.

关键词： NE China A Newly Discovered Oil-bearing Mesoproterozoic Erathem within the Niu D1 Well Yanliao Faulted Depression Zone liaoxi Depression

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

U-Pb-Hf isotopes and petrogenesis of Late Jurassic akakitic quartz monzodiorite in Xingcheng area,western Liaoning Province

引用

Global Geology 2021年第3期24卷 129-143页

作者： YAN Xiangyu YANG Debin MU Maosong HAO Leran College of Earth Sciences Jilin UniversityChangchun 130061China

The petrogenesis and geodynamic setting of the Late Jurassic Baita porphyry quartz monzodiorite in Xingcheng-liaoxi area provide information for understanding the Mesozoic tectonic evolution of the northeastern North China Craton.In this paper,geochronological,whole-rock geochemical,and in-situ zircon Hf isotopic analyses of Baita porphyry quartz monzodiorite were investigated to constrain the crystallization age and petrogenesis.Zircons exhibit typical oscillatory zoning in cathodoluminescence images and show relatively high Th/U ratios(0.78-1.62),and U-Pb analyses indicate that these rocks were crystallized during the Late Jurassic(159±1 Ma).Geochemically,they are characterized by high contents of SiO 2(65.21wt%-65.31wt%),Al 2O 3(16.29wt%-16.31wt%),Sr(521×10^(-6)-539×10^(-6)),and Sr/Y ratio(45.1-47.8)but low Y(10.9×10^(-6)-12.0×10^(-6)),with obvious adakitic geochemical affinities.These above-mentioned findings,combined with their negativeε_(Hf)(t)values(-21.7 to-20.2),corresponding two-stage model age(T_( DM2))of 2579-2484 Ma,as well as low MgO(1.38wt%-1.39wt%),Cr(18.5×10^(-6)-19.5×10^(-6))and Ni(9.45×10^(-6)-9.46×10^(-6))values,indicate that Baita porphyry quartz monzodiorite may be generated by partial melting of the Neoarchean-Paleoproterozoic thickened basaltic lower crust.Based on the results from this study and pre-vious regional studies,it is concluded that Baita porphyry quartz monzodiorite was spatially related to the westward subduction of the Paleo-Pacific plate.

关键词： liaoxi Late Jurassic adakitic rocks thickened lower crust Paleo-Pacific plate

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

中古辽西所见胡汉互动与交融

引用

魏晋南北朝隋唐史 2022年第6期

作者：冯立君

辽西是探讨北方民族与中央的政治互动、边郡在“内外”之际的转换、北方民族文明演进中的政治遗产等问题的窗口。秦代在战国燕基础上重置辽西郡，核心关切是应对匈奴问题。至两汉，乌桓、鲜卑自辽西渗透并在汉末借地方力量深入中原，由... 详细信息

辽西是探讨北方民族与中央的政治互动、边郡在“内外”之际的转换、北方民族文明演进中的政治遗产等问题的窗口。秦代在战国燕基础上重置辽西郡，核心关切是应对匈奴问题。至两汉，乌桓、鲜卑自辽西渗透并在汉末借地方力量深入中原，由塞外军事威胁转化为边疆政治势力。两晋以来，辽西鲜卑各部迭兴递嬗，特别是慕容鲜卑建立“三燕”并南进中原，辽西成为涵育鲜卑政治体的渊薮之地，并由此烙印在鲜卑人群的历史记忆中。迄至北魏敉平北燕，辽西又重与内地贯通合流，边界重新变为通道，胡汉交融的幅面得以拓展。与此同时，鲜卑诸政治体传承了一种带有“辽西烙印”的政治遗产：长时段视域中辽西公/王爵号的授册历程，揭橥了鲜卑人视辽西为发源地并将封爵与之紧密相连的政治传统。由此，鲜卑人进一步为中原与东北的全方位联系奠定了基础。辽西对中原与东北的联通，使该地区繁复的政治变化和人群流移映射出古胡汉统一与融合的历史脉络。

关键词：中古辽西胡汉互动交融 Medieval times liaoxi Hu ethnic and Han Chinese interaction integration

来源：人大复印报刊资料评论

在线全文

人大复印报刊资料

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：